1181328 has 20 divisors (see below), whose sum is σ = 3051888. Its totient is φ = 393760.

The previous prime is 1181321. The next prime is 1181329. The reversal of 1181328 is 8231811.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1181298 and 1181307.

It is not an unprimeable number, because it can be changed into a prime (1181321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12258 + ... + 12353.

2^1181328 is an apocalyptic number.

It is an amenable number.

1181328 is an abundant number, since it is smaller than the sum of its proper divisors (1870560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1181328 is a wasteful number, since it uses less digits than its factorization.

1181328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24622 (or 24616 counting only the distinct ones).

The product of its digits is 384, while the sum is 24.

The square root of 1181328 is about 1086.8891387810. The cubic root of 1181328 is about 105.7118076570.

The spelling of 1181328 in words is "one million, one hundred eighty-one thousand, three hundred twenty-eight".